Fresh restore on iPhone 6 and I have over 2GB of other?

So today I decided to do my last restore to iOS 8.1 before the window closes. But right after I restored I found out that of the 12.7 GB available on the phone I only had 11.5GB. I didn't sync any backup, nothing. I checked my storage right after I ended the setup screens and everything.
So I went into iTunes and found out that I had 1.97GB of other.. But how? How is that even possible.. What is that? Is there a way to fix it..?